I own a S739 and I still love it, especially for the superb audio qualtity. But I'm still pissed why it's not compatible with the Xbox 360. I love to listen to music when playing games. I just thought maybe it's working putting it from MTP to MSC mode, but it's still only charging and it won't show up as USB Device on the Xbox 360. I guess there's no solution for it and that they just don't like each other.